2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Copyright (C) 2017 Amdocs
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8 * =============================================================================
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9 * Licensed under the Apache License, Version 2.0 (the "License");
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10 * you may not use this file except in compliance with the License.
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11 * You may obtain a copy of the License at
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13 * http://www.apache.org/licenses/LICENSE-2.0
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15 * Unless required by applicable law or agreed to in writing, software
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16 * distributed under the License is distributed on an "AS IS" BASIS,
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17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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18 * See the License for the specific language governing permissions and
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19 * limitations under the License.
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21 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
22 * ============LICENSE_END=========================================================
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25 package org.openecomp.appc.lifecyclemanager.impl;
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27 import com.att.eelf.configuration.EELFLogger;
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28 import com.att.eelf.configuration.EELFManager;
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29 import com.att.eelf.i18n.EELFResourceManager;
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30 import org.openecomp.appc.exceptions.InvalidInputException;
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31 import org.openecomp.appc.i18n.Msg;
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32 import org.openecomp.appc.lifecyclemanager.LifecycleManager;
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33 import org.openecomp.appc.lifecyclemanager.objects.LifecycleException;
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34 import org.openecomp.appc.lifecyclemanager.objects.NoTransitionDefinedException;
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35 import org.openecomp.appc.statemachine.StateMachine;
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36 import org.openecomp.appc.statemachine.StateMetaDataReader;
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37 import org.openecomp.appc.statemachine.impl.StateMachineFactory;
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38 import org.openecomp.appc.statemachine.impl.readers.AppcOamMetaDataReader;
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39 import org.openecomp.appc.statemachine.impl.readers.VnfMetaDataReader;
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40 import org.openecomp.appc.statemachine.objects.*;
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42 import java.util.Map;
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43 import java.util.concurrent.ConcurrentHashMap;
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45 public class LifecycleManagerImpl implements LifecycleManager{
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47 private StateMetaDataReader metadataReader;
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48 private static Map<String,StateMachine> stateMachineMap = new ConcurrentHashMap<>();
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49 private final EELFLogger logger = EELFManager.getInstance().getLogger(LifecycleManagerImpl.class);
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50 private final EELFLogger errorLogger = EELFManager.getInstance().getErrorLogger();
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53 public String getNextState(String vnfType, String currentState, String event) throws NoTransitionDefinedException,LifecycleException{
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54 if (logger.isTraceEnabled()) {
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55 logger.trace("Entering to getNextState with vnfType = "+ vnfType + ", currentState = " + currentState + ", event = " + event);
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59 StateMachine machine;
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60 StateMachineResponse response;
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62 machine = this.getStateMachine(vnfType);
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63 response = machine.handleEvent(new State(currentState),new Event(event));
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64 if(Response.NO_TRANSITION_DEFINED.equals(response.getResponse())){
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65 errorLogger.error(EELFResourceManager.format(Msg.VF_ILLEGAL_COMMAND, vnfType,event,currentState));
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66 throw new NoTransitionDefinedException("No Transition Defined for currentState = " + currentState + ", event = " + event,currentState,event);
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68 nextState = response.getNextState();
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69 } catch (InvalidInputException e) {
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70 logger.error(e.getMessage());
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71 throw new LifecycleException(e,currentState,event);
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73 if (logger.isTraceEnabled()) {
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74 logger.trace("Exiting from getNextState with (nextState = " + nextState.getStateName() + ")");
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76 return nextState.getStateName();
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79 private StateMachine getStateMachine(String vnfType){
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80 if (logger.isTraceEnabled()) {
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81 logger.trace("Entering to getNextState with vnfType = "+ vnfType);
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83 if(vnfType == null){
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84 vnfType = "DEFAULT";
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86 StateMachine machine = stateMachineMap.get(vnfType);
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87 if(machine == null){
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88 metadataReader = getMetadataReader(vnfType);
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89 StateMachineMetadata metadata = metadataReader.readMetadata();
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90 machine = StateMachineFactory.getStateMachine(metadata);
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91 stateMachineMap.put(vnfType,machine);
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94 logger.trace("Exiting getStateMachine with StateMachine = " + stateMachineMap.get(vnfType).toString());
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95 return stateMachineMap.get(vnfType);
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98 private StateMetaDataReader getMetadataReader(String vnfType) {
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99 return vnfType.equals("APPC") ? new AppcOamMetaDataReader() : new VnfMetaDataReader();
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